JP2011037416A - Separable caster unit and carry bag equipped with caster unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a caster unit and a carry bag which can individually or freely change a wheel or a caster mechanism without lowering the solidity of the wheel or the caster mechanism itself. <P>SOLUTION: The caster unit takes a curve form along the outer peripheral edge of the bottom part of a bag and includes at least a plurality of rivet insert holes and has a plurality of female screw insert holes made of metal, a plurality of female screw attaching holes to which female screws made of metal are attached and a wheel unit freely rotating in a vertical direction and a horizontal direction. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a separable caster unit and a carry bag equipped with the caster unit.

  As an item used for the purpose of carrying a lot of luggage for business or sightseeing, there is a carry bag in which a wheel or a caster mechanism is mounted on the bottom of a bag body.

  Use of the carry bag usually pulls out the handle, grasps the handle, tilts the carry bag obliquely to the back side (handle attachment side), and only the wheel or caster mechanism attached to the back side of the carry bag contacts the ground. It moves by rotating a wheel or a caster mechanism in a state. Therefore, the load on the wheel or caster mechanism mounted on the back side (handle mounting side) of the carry bag is large, and the wheel or caster mechanism mounted on the back side of the carry bag is often damaged. If the wheels of the carry bag or the caster mechanism are damaged, it will be difficult to use the carry bag as a whole even if the bag body is not damaged.

  By the way, the bottom structure of the cage which provides the caster attachment which attaches a caster so that attachment or detachment is possible exists as patent documents 1 (patent documents 1).

Japanese Utility Model Publication No. 3-16420

  As described above, in a carry bag having a drawer handle, the wheel or caster mechanism has a heavy load and is often damaged. Therefore, it is more convenient that the wheel or caster mechanism can be replaced individually and freely. However, if the wheel or caster mechanism is simply separable, the wheel or caster mechanism itself becomes brittle.

  Therefore, it is an object to provide a caster mechanism in which a wheel or caster mechanism can be exchanged individually and freely and the wheel or caster mechanism itself does not become brittle, that is, a robust structure, and a carry bag equipped with the mechanism. And

  In order to solve the above problems, the fixed side caster comprises a fixed side caster base having a curved shape along the outer periphery of the bottom of the bag and a separation side caster unit having a curved shape corresponding to the fixed side caster base. The base has at least a plurality of rivet insertion holes for fixing to the bag body and a plurality of female screw insertion holes to which metal female screws for fixing to the separation side caster unit are inserted. The separation-side caster unit has a wheel unit that freely rotates at least in a vertical direction and a horizontal direction, and the fixed-side caster base and the separation-side caster unit are fitted and made of a plurality of metals. Provided are a separable caster unit fixed with a male screw and a metal female screw, and a carry bag equipped with the separable caster unit.

  According to the separable caster unit of the present invention, the fixed-side caster base and the separation-side caster unit have corresponding curved shapes, the curved bases are fitted to each other, and a metal male screw and female Since the wheels or caster mechanisms themselves are fixed by screws, a robust structure is realized. In addition, since the separation-side caster unit can be replaced individually and freely by loosening and removing a plurality of male screws, even if a specific caster mechanism or a part of the caster mechanism (wheel, etc.) is damaged, it is damaged. Since the separation side casters at the locations can be individually and freely replaced with the replacement separation side casters, the carry bag can be continuously used without damage to the entire carry bag.

  Further, according to the carry bag of the present invention, the fixed-side caster base and the separation-side caster unit attached to the bottom of the carry bag have a corresponding curved shape, and the curved shape bases are fitted to each other. In addition, since the metal screws are fixed by male and female screws, the wheel or the caster mechanism itself has a robust structure. In addition, since the separation-side caster unit can be replaced individually and freely by loosening and removing a plurality of male screws, even if a specific caster mechanism or a part of the caster mechanism (wheel, etc.) is damaged, it is damaged. Since the separation side casters at the locations can be individually and freely replaced with the replacement separation side casters, the carry bag can be continuously used without damage to the entire carry bag.

  Note that even if the caster mechanism or a part of the caster mechanism (wheels or the like) is damaged, it is not necessary to discard the entire carry bag, which has a positive effect on the environment from the viewpoint of reducing waste. Moreover, since the damage is eliminated by replacing only the separation-side caster unit at the damaged portion, the economic burden on the user can be reduced.

FIG. 1 is a side view of a fixed-side caster base and a separation-side caster unit. FIG. 2 is a plan view and a back view of the fixed-side caster base and the separation-side caster unit. FIG. 3 is a diagram showing a fixed state of the fixed-side caster base and the separation-side caster unit. FIG. 4 is a diagram illustrating the rotation operation of the separable caster unit. FIG. 5 is an overall view of a carry bag equipped with a separable caster unit.

  The separable caster unit according to the present invention has a fixed caster base fixed to a bottom portion of a carry bag equipped with a drawer handle by a plurality of rivets, and a plurality of separate caster units are fitted to the caster base. It is fixed by using male and female screws.

  The configuration of the separable caster unit according to the first embodiment will be described with reference to FIGS. 1, 2, 3, and 4. FIG.

  The separable caster unit (30) includes a fixed-side caster base (300) having a curved shape along the outer periphery of the bottom of the bag body (10), and a separated side having a curved shape corresponding to the fixed-side caster base (300). It consists of a caster unit (301).

  The fixed-side caster base (300) includes four curved caster bases (3000) and brass female screws (3001) located at substantially four corners of the curved caster base (3000). Female screw insertion hole (3000h1), wheel unit sliding rivet insertion hole B (3000h2) located substantially at the center of the curved caster base (3000), and the curved part of the curved caster base (3000) And four rivet insertion holes (3000h3), one at the center of each side of the flat portion and a total of four.

  The brass, which is the material of the female screw (3001), is one of the materials selected to achieve the robust structure of the wheel or caster mechanism itself, and can achieve the robust structure of the wheel or caster mechanism itself. Any other material may be used.

  The robust configuration of the wheel or the caster mechanism itself is, for example, that it does not rust and become brittle due to moisture from rain or snow, or that the fixation does not become weak by repeated screw tightening and screw loosening operations, etc. It is the idea that included.

  The female screw insertion hole (3000h1) is a hole for inserting and fixing a brass female screw (3001), and is integrated with the female screw (3001).

  Of the female screw insertion hole (3000h1) integrated with the female screw (3001), two on the side away from the curved portion of the curved caster base (3000) (located in the lower part in FIG. 2) 2) has a protruding portion higher than two near the curved portion (two in the upper portion in FIG. 2). Engagement between the fixed caster base (300) and the separation caster unit (301) by increasing the two protrusions on the side away from the curved portion (two positioned in the lower part in FIG. 2) Is realized.

  The rivet insertion hole (3000h3) is a hole through which a rivet (302) which is struck for the purpose of fixing the curved caster base (3000) and the bag body (10) is passed.

  The separation-side caster unit (301) includes a curved caster unit base (3010) having a curved shape corresponding to the curved caster base (3000), and a wheel unit (3011) that freely rotates vertically and horizontally. ) And a wheel unit sliding rivet (3012) that slides the curved caster unit base (3010) and the wheel unit substantially at the center of the curved caster unit base (3010).

  The curved caster unit base (3010) has four male screw insertion holes (3010h1) located at substantially four corners of the curved caster unit base (3010), and is located substantially at the center of the curved caster unit base (3010). Wheel unit sliding rivet insertion hole A (3010h2).

  The wheel unit (3011) includes a wheel (3011a) that freely rotates in a vertical direction, a rotation shaft (3011b) that supports the wheel, and a rotation shaft clamping mechanism (3011c) that clamps the rotation shaft (3011b). Consists of. The turning operation of the wheel unit (3011) is shown in FIG.

  The curved caster base (3000) and the separation-side caster unit base (3010) are connected to four metal male screws (303) at approximately four corners of the curved caster unit base (3010). It is stuck.

  In addition, the shape of the top of the metal male screw (303) is preferably a shape of the top of the head that can be tightened or loosened with a commercially available tool (driver or the like) assuming a situation of replacement at the time of damage (plus Shape, minus shape, etc.).

  The operation when the separable caster unit (30) is separated, that is, when the separation side caster unit (301) is detached from the fixed side caster base (300) and replaced will be described with reference to FIG.

  Assume that one of the wheel units (3011) on the back side of the carry bag is damaged. The four metal male screws (303) located at substantially the four corners of the separation side caster unit (301) at the damaged part are loosened and removed from the male screw insertion hole (3010h1).

  The curved caster base (3000) and the curved caster unit base (3010) are disengaged, and the separation caster unit (301) is separated from the fixed caster base (300).

  The curved caster unit base (3010) of the separation side caster unit (301) for replacement is fitted into the curved caster base (3000) of the fixed caster base (300), and the separation side caster unit (301) of the separation side caster unit (301) is fitted. The four metal male screws (303) located at substantially four corners are tightened to fix the fixed caster base (300) and the separation-side caster unit (301).

  Example 2 is a carry bag (1) in which the separable caster unit (30) of Example 1 is attached to the bottom of the bag body (10). The configuration will be described with reference to FIG.

  The carry bag (1) is a bag main body (10) for storing clothes and the like, and a drawer handle that is positioned at the upper rear side of the bag main body (10) and is gripped by the user when moving the carry bag (1). (20) and the separable caster unit (30) of the first embodiment.

  The operation of the separable caster unit (30) is the same as that of the first embodiment.

  The present invention provides a caster that improves the maintainability and convenience without lowering the robustness while having a simple structure, and thus has industrial applicability.

DESCRIPTION OF SYMBOLS 1 Carry bag 10 Bag main body 20 Drawer handle 30 Separable caster unit 300 Fixed side caster base 3000 Curved caster base 3000h1 Female thread insertion hole 3000h2 Wheel unit sliding rivet insertion hole B
3000h3 Rivet insertion hole 3001 Metal female screw 301 Separating caster unit 3010 Curved caster unit base 3010h1 Male screw insertion hole 3010h2 Wheel unit sliding rivet insertion hole A
3011 Wheel unit 3011a Wheel 3011b Rotating shaft 3011c Rotating shaft clamping mechanism 3012 Wheel unit sliding rivet 302 Rivet 303 Metal male screw

Claims (2)

A fixed-side caster base having a curved shape along the outer periphery of the bottom of the bag;
A separation-side caster unit having a curved shape corresponding to the fixed-side caster base;
Consists of
A plurality of female screw insertions in which a plurality of rivet insertion holes for fixing to the bag body and a metal female screw for fixing to the separation side caster unit are inserted in the fixed side caster base. The hole,
Have
The separation side caster unit has a wheel unit that freely rotates in at least the vertical direction and the horizontal direction,
The fixed-side caster base and the separation-side caster unit are fitted and fixed with a plurality of metal male screws and metal female screws,
Separable caster unit.   A carry bag having a plurality of separable caster units according to claim 1 attached to the bottom of a bag body.